Thank you for the detailed feedback.
I often adjust Storm and Brunswick polished covers and have a good idea what to expect. I haven't done Motiv before so wasn't sure how receptive the covers were to surface adjustment. I use the Cannon during garbage time and it's after league/open bowling conditions. So the lanes are pretty beat up often with carry down.
I was seeing a lot of over/under and I only have a margin of error of a board or two. If I miss by a couple of boards it goes low/high. Also, even hitting my target also sometimes gives me inconsistent results. I am sure a lot of it has to do with the bowler and the lane conditions.
So what I was thinking was adding a little surface to the ball to give it more bite and make it more consistent/predictable.
If you do it dry without water, the worn 3K pad is safe because you can’t really mess it up. You do all 4 sides of the ball. But that’s what people do on Storm 1500 polish to tune the surface.
Adding polish is a art form. You can overload the surface with polish and perhaps create an over/under effect. In which you use the worn pad to knock off a little bit of the polish till it’s just right.
If you want to go 500/???, then you should use a spinner and water and follow the Motiv chart for 3K. Probably 500/1000/2000/2000. Or perhaps 2K poliished.
Not sure exactly what your trying to do or correct. But the Motiv cover stocks are very easy to tune, unlike others.
Is the ball not responsive in the hook phase and your coming up short? Leaving 2 pins on the left? Knock some of the lane shine off with a 3K pad.
Or the ball over Hooks and goes through the nose? Not enough surface, hit it with a 2K pad to smooth it out in the back.
Is it really over/under? And your having a hard time keeping it in the pocket? Knock some of the polish off. Or resurface the ball back to factory.